It's one of those grey winter scenes - lots of snow, light grey clouds and sky with no detail. As a result the camera has metered and slightly underexposed.

You have a few options to hand. You can try using exposure compensation, but that may blow the white in the snow. This will generate more detail in the shadows though, as it looks as if it's clipped on the bottom right.

Another option it to bracket. You should be able to do this without a tripod, but a tripod would help. You could expose for the shadows and then the highlights and put the camera on continual high to blast out the frame in the bracket, with little or no camera movement. This will then allow you to blend either manually in photoshop or by using software like photomatix.

Another option when nature's not playing nice could be black and white. You could overexpose the shot to lift the shadow details, pump up the contrast a little and convert.